Hi Tvrtko, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-tip/drm-tip] url: https://github.com/intel-lab-lkp/linux/commits/Tvrtko-Ursulin/drm-i915-Add-ability-for-tracking-buffer-objects-per-client/20230922-214929 base: git://anongit.freedesktop.org/drm/drm-tip drm-tip patch link: https://lore.kernel.org/r/20230922134700.235039-7-tvrtko.ursulin%40linux.intel.com patch subject: [PATCH 6/6] drm/i915: Implement fdinfo memory stats printing config: i386-randconfig-062-20230927 (https://download.01.org/0day-ci/archive/20230927/202309271528.TmGx2jEq-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230927/202309271528.TmGx2jEq-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309271528.TmGx2jEq-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/i915/i915_drm_client.c:92:9: sparse: sparse: incompatible types in comparison expression (different address spaces): >> drivers/gpu/drm/i915/i915_drm_client.c:92:9: sparse: struct list_head [noderef] __rcu * >> drivers/gpu/drm/i915/i915_drm_client.c:92:9: sparse: struct list_head * >> drivers/gpu/drm/i915/i915_drm_client.c:92:9: sparse: sparse: incompatible types in comparison expression (different address spaces): >> drivers/gpu/drm/i915/i915_drm_client.c:92:9: sparse: struct list_head [noderef] __rcu * >> drivers/gpu/drm/i915/i915_drm_client.c:92:9: sparse: struct list_head * vim +92 drivers/gpu/drm/i915/i915_drm_client.c 72 73 static void show_meminfo(struct drm_printer *p, struct drm_file *file) 74 { 75 struct drm_memory_stats stats[INTEL_REGION_UNKNOWN] = {}; 76 struct drm_i915_file_private *fpriv = file->driver_priv; 77 struct i915_drm_client *client = fpriv->client; 78 struct drm_i915_private *i915 = fpriv->i915; 79 struct drm_i915_gem_object *obj; 80 struct intel_memory_region *mr; 81 struct list_head *pos; 82 unsigned int id; 83 84 /* Public objects. */ 85 spin_lock(&file->table_lock); 86 idr_for_each_entry(&file->object_idr, obj, id) 87 obj_meminfo(obj, stats); 88 spin_unlock(&file->table_lock); 89 90 /* Internal objects. */ 91 rcu_read_lock(); > 92 list_for_each_rcu(pos, &client->objects_list) { 93 obj = i915_gem_object_get_rcu(list_entry(pos, typeof(*obj), 94 client_link)); 95 if (!obj) 96 continue; 97 obj_meminfo(obj, stats); 98 i915_gem_object_put(obj); 99 } 100 rcu_read_unlock(); 101 102 for_each_memory_region(mr, i915, id) 103 drm_print_memory_stats(p, 104 &stats[id], 105 DRM_GEM_OBJECT_RESIDENT | 106 DRM_GEM_OBJECT_PURGEABLE, 107 mr->uabi_name); 108 } 109 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki